diff --git a/collects/scribblings/reference/stx-ops.scrbl b/collects/scribblings/reference/stx-ops.scrbl
index 89b1e99b35..34d7579277 100644
--- a/collects/scribblings/reference/stx-ops.scrbl
+++ b/collects/scribblings/reference/stx-ops.scrbl
@@ -195,7 +195,8 @@ Converted objects in @racket[v] are given the lexical context
 information of @racket[ctxt] and the source-location information of
 @racket[srcloc]. If @racket[v] is not already a @tech{syntax object},
 then the resulting immediate @tech{syntax object} is given the
-properties (see @secref["stxprops"]) of @racket[prop]; if @racket[v]
+properties (see @secref["stxprops"]) of @racket[prop] (even the
+hidden ones that would not be visible via @racket[syntax-property-symbol-keys]); if @racket[v]
 is a pair, vector, box, immutable @tech{hash table}, or immutable
 @tech{prefab} structure, recursively converted values are not given
 properties. If @racket[ctxt] is @tech{tainted} or